Edwin fieth



. for vehicle-wheels; and it consists in certain PATENT EEICE.

EDWIN FIETH, 0F AUBURN, NEW YORK,

LUBRICATOR FOR VEHICLE-AXLES.

SPECIFICATION forming part of Letters Patent No. 256,664, dated April 18,1882.

Application filed February 9, 1882. (No model.)

To all whom it may concern.-

Be it known that I, EDWIN FIRTH, of Auburn, in the county of Cayuga andvState of New York, have invented certain newanduseful- Improvements in Lnbricators;V and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, which form a part of this specification.

Figure l is a longitudinal sectional view. Fig. 2 is a sectional view of the thimbl'e O, detached. Fig..3 is a longitudinal sectional view, illustratinga modification of my invention; and Fig. 4 is a sectional view, showinga different method of attaching the thimble O to the spindle.

Correspondingr parts in the several figures are denoted by like letters of reference.

This invention relates to lubricating devices improvements in the construction of the same which will be hereinafter fully described, and particularly pointed out in theclaims.

In the drawings hereto annexed, A represents the axle, and B the spindle, the end of which is turned down, as shown, so as to form two shoulders, C D, of 'decreasing diameter. Flanges E are formed, as usual, upon the axle near the spindle.

The axle-box consists of two tubes or shells, F G, the outer one of which, F, is provided in the usual manner with wings or feathers H, to keep it from turning in the hub in which it is adjusted., The inner shell, G, is formed with a shoulder, I, abutting against the shoulder J of shell F, and with atlange, K,bearing against the inside of said outer shell, thus spacing the two shells and forming a chamber, L, for the reception of oil. Openings M and slots N are formed in the shell 'G for the passage of oil to the spindle, which is tted in said inner shell.

O is a thimble, which is fitted upon the shoulder G at the end of the spindle, where it is swiveled and held in place by means of a ring or collar, P, adjusted upon shoulder D, where it is held in place by clinching the end of the spindle, as shown. The thimble O is threaded or. inner end with one or more A shaped notches, Q.

Instead of attaching the thimble Oto the spindle in the manner-just described, the end of the spindle may he provided withan annular groove, P', toreceive a pin, P2, driven transversely through the thimble O, as shown in Fig. 4. In this manner the thimble is rmly attached, yet capable of revolving freely.

The end ot' the outer shell, F, of the axlebox is provided with an internal screw-thread to receive a double-threaded nut, R, which is adjusted by its inside thread upon the swivcled sleeve O. Nut R is provided at its outer end with a flange, S, which is to be screwed down tightlyagainst the end of theouter shell, F, ofthe axle-box, the length of the nut being such that its inner end shall abut against the outer end of shell G. I

A plug, T, is tted in the outer end of thimble O, and a cap or lock-nut, U, is screwed tightly upon the end of said thimble.

Nut R is provided with a channel, V, communicating with the oil-chamber L, the outer end of said channel or passage being closed by a screw-plug, W.

In operation the oil-chamber L maybe -lled by removing the plug W. The oil, as the wheel revolves, passes through the openings M and slots N tothe spindle, a portion passing through the notches Q in thimble 0 to the shoulder G of the spindle, upon which the said thimble may thus freely revolve. The thimble O, nut R, and cap U, it will be observed, revolve with the wheel and axle-box, of which latter they may be said to form part. It will also be seen that any slack caused by 'wear upon the box and spindle may be taken up or compensated for by tightening the lock-nut or cap U.

When found necessary or desirable the shells F and G may be connected by a screw-thread, as shown at as in Fig. 3 of the drawings.

Havingthus described myinventioml claim and desire to secure by Letters Patent of the.

United Statesi 1. rEhe combination of the spindle having at its end a swiveled thimble with the axlebox, suitably connected to said'thimble, sub

upon the outside, and it is provided at its lower stantially as set forth.

ICQ

2. The herein-described spindle, `provided at and flange K, the double-threaded nut R, havits end with two shoulders ot' decreasing dialning flange S, channel V, and plug W, and the eters to receive an exteriorly-threaded thimcap or look-nut U, substantially as and for the ble Swiveled upon the inner shoulder and held purpose seb forth. 15

5 in place by a ring or collar rmly secured upon ln testimony that; I claim the. foregoing as the outer one, substantially as set forth. myown I have hereto affixed my signature in 3. The spindle provided at its end with a presence of two witnesses. swiveled exteriorly-threaded thilnble, in eoln- EDWIN FIRTH. bination with the axle-box consisting of shells Witnesses: xo F G, having intermediate space, L, said shell HENRY A. MAYNARD,

G being provided with openings M,notehes N, l F. H. KENNEDY. 

